134999573 has 4 divisors (see below), whose sum is σ = 137014560. Its totient is φ = 132984588.

The previous prime is 134999563. The next prime is 134999591. The reversal of 134999573 is 375999431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134999573 - 2⁶ = 134999509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134999563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007393 + ... + 1007526.

It is an arithmetic number, because the mean of its divisors is an integer number (34253640).

Almost surely, 2^134999573 is an apocalyptic number.

It is an amenable number.

134999573 is a deficient number, since it is larger than the sum of its proper divisors (2014987).

134999573 is an equidigital number, since it uses as much as digits as its factorization.

134999573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014986.

The product of its digits is 918540, while the sum is 50.

The square root of 134999573 is about 11618.9316634534. The cubic root of 134999573 is about 512.9922431434.

The spelling of 134999573 in words is "one hundred thirty-four million, nine hundred ninety-nine thousand, five hundred seventy-three".